Where this switch slots into the machine
The Schneider Electric / Square D Osiswitch XCKP2128N12 is a compact limit switch built for position feedback on packaging, material handling and small-assembly cells where the body has to fit a tight machine frame but still survive washdown or hosed-down cleaning. Its 1NO-1NC snap-action contact pair is rated 240 VAC 10 A and 250 VDC 0.27 A — the snap mechanism gives a defined, repeatable trip point independent of actuator speed, so the same unit can be used for end-of-stroke signalling, gate interlock monitoring or a low-current PLC input without re-spec.
Sealing, force, and the operating envelope
The plastic body is sealed to NEMA 1/2/4/6/6P/12/13 and IP66/IP67 — the NEMA 4 and 6P ratings cover hosed-down indoor washdown and brief immersion, IP66 covers powerful water jets and IP67 covers temporary submersion at the panel-side gland, which lets the same switch serve food, beverage and outdoor conveyor zones without a separate enclosure.
Wiring, approvals, and standards
Field wiring lands on screw-clamp terminals inside a 1/2 inch NPT conduit entry — the same entry a panel builder is already cutting for general-purpose cable glands, so retrofit onto an existing machine harness does not need a new hole pattern. The switch is listed under UL and CSA and conforms to EN/IEC 60204-1 (machine electrical equipment — general requirements) and EN/IEC 60947-5-1 (low-voltage switchgear, control-circuit devices and switching elements), which are the reference standards an integrator cites when the limit switch sits inside the safety-related stop or interlock chain of an industrial machine.
Lifecycle posture and how to order it
The XCKP2128N12 carries a current lifecycle flag in the Schneider Electric system and ships under the Square D / Telemecanique Osiswitch brand family, so it is treated as in-current production on the manufacturer's books — the right move is to commit the BOM line on the exact order code rather than chase an unannounced substitute. Independent-distribution stock, lead time and unit pricing for XCKP2128N12 are confirmed against an RFQ — tell me the quantity, the panel build date and whether you need traceable factory-pack or just genuine-Osiswitch for a line-down spare, and we line up the supply channel accordingly.